package chapter07_object;

/**
 * ClassName: PersonTest1
 * Package: chapter07_object
 * Description:
 *向下转型（父类-->子类）
 * @Author SherryAn
 * @Create 2025/7/18 13:55
 */
public class PersonTest1 {
    public static void main(String[] args) {

    }
}
